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RAM
---
vm-1                      = 1,024 MiB
vm-2                      = 2,048 MiB

Total: 3,072 MiB

CPU(s)
------

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This is an alias to shells to display mount output in formatted columns.

Add this alias to your rc shell(.bashrc, .zshrc, or whatever):

alias mountc='mount | column -t | sort -V'

Example output:

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List KVM/Virsh Network Interface per VM

This script will list all VMs and the network interfaces attached to that VM.

Sample output:

smb:
	vnet1
system_prod:
	vnet8

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function evaluate_jenv() {
        if [ ! -v JENV_LOADED ]; then
                setopt local_options nullglob
                [ -f pom.xml -o -f build.gradle.kts -o -f build.sbt -o -f build.xml -o -f .java-version -o -f .deps.edn -o -f project.clj -o -f build.boot ] && files=1
                if [ ! -v files ]; then
                        extensions=(*.java, *.class, *.gradle, *.jar, *.cljs, *.cljc)
                        if [ -z "$extensions" ]; then
                                return
                        fi
                fi

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Oh My Zsh Colourize Plugin

This plugin uses CCZE to colourize some commands output.

Installation:

Copy ccze.plugin.zsh to ~/.oh-my-zsh/custom/plugins/ccze and logout and login again.

Usage:

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Generate random passwords using 4 different charsets. Configurable length and count(Default 32 len, 30 count).

Usage:

./genpass
Usage: ./genpass [length(32)] [passwords_count(30)]

20973143392597200522372078343494   9gdds8ihw2niigs3f4gzddv9rtfmv8kx   dlaoEefHJJxN6oqglazb5RgstmD9z144   ,i-UIZVNd|~9$Z'5=J@=RVt{nIV+J{a&
45656053506377489597126894570217   up34vlejddl3vnj5n7m38733myv8dkx1   9wJLm8nCwN0AhHznsod2VyX7S5Yhd0ah   ^#y-@GBRTX&BTi @oJZO9f8K:9tUVTbU

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This scripts shows all fingerprints of SSH authorized keys for the root user.

This is usefull when you are checking which key has been accepted in the /var/log/auth.log.

Like:

Mar  9 10:13:08 hnm sshd[1595179]: Accepted publickey for root from 192.168.1.1 port 56726 ssh2: ED25519 SHA256:OLcfsyZasQWbXze7TVirQd42O09YB704i1N8pKOuve5u

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#
# Authors:
#   Tercio Gaudencio Filho <terciofilho@gmail.com>
#
# Ex:
# USERNAME@HOSTNAME [TIME] [/FULL/PATH] ✘ $

function prompt_0x3333_2_setup {
  setopt LOCAL_OPTIONS
  unsetopt XTRACE KSH_ARRAYS

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This is a simple example on how to interface with a TLC5973 IC to dim LEDs in Raspberry Pi.

It uses SPI to generate a pulse train with precise timing.

In Raspberry Pi, the SPI may have some inter-byte delay, which makes this useless. More here: https://www.raspberrypi.org/forums/viewtopic.php?t=211152

I'm using go-rpio to manage the SPI device.

The idea to use SPI came from this repo: https://github.com/mik4el/cc1350-swim-thermo/blob/b2fdb54a940e18911959a5e1778ca7fc06915a11/software/tlc5973_spimaster_CC1350_SWIMTHERMO_tirtos_ccs/spimaster.c

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server {
  listen 80;
  server_name docker.yourdomain.com;

  return 301 https://$server_name$request_uri;
}


upstream registry {
    server 192.168.3.10:5000;